| 摘要 |
The facemask tape-adjuster is an adjusting device for the tapes of facemasks comprising of a upper piece and a lower piece respectively made joint at one edge, in which the inner face of upper piece is made to have pressing region complementary to that which is made on the inner face of bottom piece, which are further mounted between by a two-stage buckling structure, wherein opposing two of four tapes are held between the complementary inner faces reverse-overlapped through opposing ends of the adjuster, which upon first clipping stage there is space given between the two piece allowing the two tapes limited mobility for adjustment, which further upon second clipping stage the space is minimized to such that the two tapes become held fixed.
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